Downstairs master bedroom house plans combine the advantages of one-level living with the style and space of multi-level designs. "Master down" home plans can be luxurious and decadent, simple and straightforward or filled with functional universal design features like curbless showers and extra room around fixtures. If you're planning to age in place, or if you have a family member with physical challenges, these house design plans might be just what you're looking for. For those who enjoy the outdoors, choose a blueprint with a patio or porch that opens off the master suite. Or, if you prefer a more secluded retreat, select a floor plan that features an enclosed garden courtyard.